package com.rural.bus.utils;

import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;

import com.rural.bus.model.Point;

/**
 * @author peanut
 *
 */
public class LocationUtil {

	public static Point getCurrentLocation(Context context){
		
		double latitude=0.0;  
		double longitude =0.0; 
		Point point = null;
		
		LocationManager locationManager = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);  
        if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){  
            Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);  
            if(location != null){  
                latitude = location.getLatitude();  
                longitude = location.getLongitude();  
                point = new Point(latitude, longitude);
             }  
        }else{  
            LocationListener locationListener = new LocationListener() {
                // Provider被enable时触发此函数，比如GPS被打开  
                @Override  
                public void onProviderEnabled(String provider) {  
                      
                }  
                  
                // Provider被disable时触发此函数，比如GPS被关闭   
                @Override  
                public void onProviderDisabled(String provider) {  
                      
                }  
                  
                //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
                // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数 
                @Override  
                public void onLocationChanged(Location location) {  
                    if (location != null) {     
                        Log.e("Map", "Location changed : Lat: "    
                        + location.getLatitude() + " Lng: "    
                        + location.getLongitude());
                    }  
                }

				@Override
				public void onStatusChanged(String provider, int status,
						Bundle extras) {
					// TODO Auto-generated method stub
					
				}  
            };  
            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,1000, 0, locationListener);     
            Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);     
            if(location != null){     
                latitude = location.getLatitude(); //经度     
                longitude = location.getLongitude(); //纬度
                point = new Point(latitude, longitude);
            }
        }
        return point;
	}
	
}